Machine for refacing butchers&#39; blocks



J. SEMPE'RGER MACHINE FOR REFACING BUTCHERS BLOCKS March 24, 1925.

Filed qnril 9 1924 2 Sheets-Sheet 1 avwento'b Josepfi Sew 227W March 24,

J. SEMPERGER MACHINE FOR REFAGING BUTCHERS BLOCKS iled April 9, '1924 2 Sheets-Sheet 2 w. r e flu W m e 8 z w m 3311;, Mmm M14! my JOSEPH SEMIPERGER, OF DETROIT, MICHIGAN.

MIACI-IINE FOB REEACING BUTCHERS BLOCKS.

Application filed April 9,

51' all 107mm it may concern:

Be it known that I, Josrrrir Snirrnnc-nn, a citizen the United States of America, residing at Detroit, in the county of Wayne and State of lliichigai'i, have invented certain new and useful lu'iprovements in Machines for Refacing Butchers Blocks, of which the following is a specification, refer ence being had therein to the accompanying drawings.

This invention relates to machines for refacing butcher blocks and particularly relates to such machines as accomplish the refaeing by means of a saw.

It is object of the invention to provide an improved means for clamping a refacing machine upon a butchers block.

it is a further object to provide a refacing machine of the described character that will be sufficiently light and compact to permitsetting up and removal of the machine by one man and which further will be of a comparatively simple and inexpensive construction.

In the drawings Figure 1 is a top plan view of the machine attached to a butchers block of rectangular form;

Figure 2 is a side view of the same partly in section;

Figure 3 is a top plan view of an alternative construction for use upon a circular butchers block;

Figure 1 is a side view of the same.

Figures and 6 are perspective detail views of adjustable clamping elements employed in said alternative construction.

In these views the reference character 1 designates a rectangular butchers block to which the improved machine is attached for use. Said machine comprises a pair of angle bars 2 which lie against opposite side faces of the block 1 and which are adapted to be independently clamped upon the block. Thus, each of said bars is engaged by two U-shaped slides 8 carrying set screws l, whereby the slides may be clamped where desired upon the bar. Each slide has a bracket 5 secured thereto, and each bracket 5 carries a set screw 6 for engaging a face of the block transverse to that engaged by the corresponding bar 2. in mounting the bars 2 upon a butchers block the clamps t are loosened, and after placing said bar against a side of the block the slides 3 are moved close adjacent the transverse sides 1924. Serial No. 785,300.

of the block. The set screws 4 and 6 are then successively tightened, the former holding said slides and the brackets 5 in fixed relation to the block, and the latter clamping said brackets firmly upon the block. Each angle bar 2 carries one or more clamping screws 6 which are adapted to be tightened against the block 1 to hold the bar at a desired elevation within the slides 3.

7 designates a pair of spaced parallel rods which are mounted in plates 8 carrying rollers 9 adapted to travel upon the bars 2, said rods 7 extending above the block 1 transversely of the bars 2 when the carriage 7, 8, 9 is in proper position for use. 10 designates a pair of clamping screws engaging each plate 8 to clamp the rods 7 in a desired rigid relation to said plate.

Upon the rods 7 carriage comprising a pair of plates 11 through which said rods freely pass and a platform 11 connecting said plates. Upon said platform there is mounted an electric motor 12, which through a pair of bevel gears 13 drives a vertical shaft 14 carrying upon its lower end a circular saw 15.

In the use of the described machine the larger carriage 7, 8, 9 is moved to one end of the bars 2, and the smaller carriage 11, 11 is slid to one end of the rods 7. The operator assures himself that the bars 2 engage the bloclt 1 at such an elevation as to remove the desired depth of material from the top of the block. The motor 12 is energized and the carriage 11, 11 is gradually slid along the rods 7 with the saw 15, cutting into an end face of the block. After taking a cut entirely across said face, the saw is slid back to the other ends of the rod 7, and the material above the kerf 16 is broken off by the use of a hatchet or any suitable implement. The larger carriage 7, 8, 9 is now shifted to adapt the saw to take another cut, and the carriage 11, 11 is again shifted gradually across the table. These steps are repeated over and over until the desired depth of material has been removed from the entire top of the block.

Referring now to Figures 3, 4-, 5 and 6, 17 designates a round butchers block, and 18 a pair of angle bars adapted to be clamped oppositely upon the side of said block. The ends of the bars 18 are adjustably engaged with a pair of cross bars 19, and thetwo cross bars 19 are connected by a pair of bars there is slidable a smaller which engage the block 17 th'erebeneath. Each bar 20 carries two slidably adjustable brackets 21 and said brackets carry clamping screws 22 (see Fig. 5) whereby they may be secured at desired points upon said bars. Each of said brackets furthermore is formed with an upstanding lug 23 which carries a clamping screw 2el to be tightened against the side of the block. In attaching the described frame, the two brackets 21 on each bar 20 are slid adjacent opposite sides of the block 17, and the screws 22 and 23 are then successively tightened. 25 are brackets connecting the bars 18 and 19. Said brackets have U-shaped lower ends 26 slidable upon the bars 19 and adapted to be clamped by screws 28. Clamps 29 adjustable vertically upon said brackets by screws 30, engage the bars 18. With the described clamping device will be used carriages duplicating those already described.

What I claim as my invention is 1. In a refacing machine for a butchers block, a supporting bar engageable with a side face of said block and formed of angle iron, a pair of U-shaped slides engaging a substantially vertical flange of said angle iron, adapted the latter for a vertical adjustment relative to the slide means carried by said slides for clamping the same in selective positions upon the bar, and means carried by said slides for clamping the same to end faces of the block transverse to those engaged by the bar.

2. A supporting frame for a refacing machine comprising a pair of bars cngageable with opposite faces of a butchers block, clamps intermediately carried by said bars for engagement with said faces, a pair of slides carried by each bar, means for clamping said slides upon the bar in selective positions, and means carried by the slides for clamping engagement with end faces of the block transverse to those engaged by the bars, whereby the bars are independently secured to the block.

3. In a refacing machine for butchers blocks, a supporting er, a pair of slides engaging the bar for supporting the same, adapting the bar for a limited vertical adjustment in said slides, means carried by said slides for clamping the same to faces of a block transverse to said bar and means carried by the slides for clamping the same to the bar in selectivepositions.

In testimony whereof I affix my signature.

JOSEPH SEMPERGER 

